Toe portion of a shoe upper



FIG. 1 is left side elevational view of a toe portion of a shoe upper showing our new design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a top plan view thereof; and,

FIG. 4 is a front elevational view thereof.

The broken line showing of a shoe in FIGS. 1-4 is environmental only and forms no part of the claimed design. 

The ornamental design for a toe portion of a shoe upper, as shown and described. 